Suction apparatus.



R. GALLOWAY. I sUcTIoN APPARATUS.

APPLICATION FILED AUG. 9, 1912.

Patented Oct. 13, 1914.

nell /l All' ROBERT GALLOWAY, 0F BUFFALO, NEW YORK.

S'UCTION APPARATUS.

To all whom it mag/concern.'

Be it known that I, ROBERT GALLOWAY, a citizen of the United States, and resident of Buffalo, in the county of Erie and State -of New York, have invented certain new and useful Improvements in Suction Apparatus; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, and to the iigures and letter of reference marked thereon.

This invention relates to improvements in apparatus for vacuum cleaning especially designed for use in connection with a low pressure water system, the objects of the invention being to provide a. device simple in construction andin which the necessity of employing packing glands and adjusting screws, etc. is entirely avoided. f

To these ends the invention consists .in certain no-vel details of construction and combinations-and arrangement of parts all as will be now described and the particular features of novelty pointed out in the appended claims.

In theaccompanying drawings, wherein is lillustrated the preferred embodiment of theV invention, Figure -1 is a sectional view of an appara-tus embodying the present in-l vention; Figs. 2 and 3 are detail views of the nozzle alone.

Like letters of reference4 in the several figures indicate the 'same parts.

Referring to the drawings, the letter A indicates a pipe fitting formed at its upper end With` an extension A adapted to be connected with a faucet or spigot, not shown, of an ordinary Water-supply system. A branch pipe B,through which'the suction is to be created, enters the fitting A intermediate the supply 'and discharge ends, the passages in the fitting and branch preferably .gradually merging toward the dis- Ycharge end or head. f

. In order to secure the most eflicient action,

it is necessary that the column of water be broken up into a sprayer fine particles. To accomplish this, in the present invention, a

nozzle C of peculiar construction is located.

inthe pipe A, immediately above the branch pipe B. This nozzle consists preferably of a hollow cylindrical casing fitted within the pipe A and having in its'opposite ends alined'openings' c, o. The ends ofthe cylindrical casing or nozzle C formiparallel Specification ot Letters Patent.

Patented Oct. 13, 1914.

Appncation mea August a, 191.2. serial No. 714,274.

diaphragms which are in immovable or nonadjustable relation and the opening c, c therethrough are of the same area with cylindrical walls in alinement with each other. The nozzle C fits tightly within the pipe A forming a water 'tight joint, thus doing away with the necessity of packing of any kind. At the lower end of the pipe B, is

a trap D, having baiiies d d, arranged out of alinement with each other to formv a tra-p water sealed, such construction aiding in securing a more perfect vacuum, as it prevents the return of air from the discharge end. It will be note/d that the lower wall of the trap is curved or downwardly inclined whereby the discharge of the air'and water is accelerated thus preventing back liow of air and back pressure on the suction nozzle.

To give the best results the inner cross sectional area of the pipe or fitting A below the branch B should be of proper 'size and shape to suit the water pressure, and means isprovided ,in the present apparatus to adapt the device for use under various pressures. For this purpose a throat piece E is provided which consists of a pipe section or liner having a flaring upper end which is fitted removably within the pipe A. Various sizes of these throat pieces may be provided and these can be readily put in place by simply removing the return trap and slipping the throat piece into the pipe A.

The effect o-f a nozzle of the construction described so far as I amable to determine such av tumbling action of the water that it separates completely into minute" drops as it issues from the nozzle-while still retaining its momentum and velocity and thereby -iio VW l

lso

the tumbling action which effects the' complete subdivision of the stream into a spray as it passes through the air chamber.

l/Vhile the nozzle has been shown and described in connection with a vacuum cleaning` or suction apparatus it has been found that it forms a very efiicient spray nozzle for spraying-fruit trees', etc.

I-Iaving thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States, is:

l. In a suction apparatus, the combination with a fitting adapted to be connected with a supply system and having a suction branch' communicating therewith intermediate the pressure and discharge ends, of a spraynozzle located within the fitting at the pressure side of the opening of the suction branch and embodying two parallel daphragms in immovable relation with al distance chamber between and having central openings therein with cylindrical walls in alinement with each other and whose areas are less than the areas in cross section of the adjacent partsl of the fitting and the distance chamber.

2. In a suction apparatus, the combination with afitting adapted to be connected to a' supply system and having a suction branch, of a nozzle consisting of a chambered casing having alined inlet and discharge openings in its opposite ends whose areas are equal and lessthan the areas in cross sectionof the adjacent parts of the fitting and the chambered casing, said nozzle being located within the fitting at the pressure side of the suction branch.

3. In a suction apparatus, the'combination with a fitting adapted to be connected with a supply system and having a suction branch pipe, of a spray nozzle consisting of a` chambered casing having inlet and discharge openings in its opposite ends whose areas are less than the areas in cross section of the adjacent parts of the fitting and the chambered casing, the water sealed trap attached to the discharge end of the said fitting throughwhich both air and water are continuously discharged saidy trap having two inside baflie plates arranged zig-zag whereby the back flow of air into the suc- .tion chamber is prevented and a more elficient vacuum maintained. j 4. In a suction apparatus, the ycombination with "a fitting adapted to be connected with a supply system and havin'gf'a suction branch ipe, of a spray nozzle consisting of a chambered casing having inlet and discharge openings in its opposite ends wh`ose areas are less than the areas in cross section of the adjacent parts of the fitting and the chambered casing, the removable throat piece fitted Within the said fitting below the suction branch pipe, the water sealed trap attached to the discharge end of the said tting through which both air and water are continuously discharged said trap having two internal baiile plates arranged out of alinement whereby the back flowl of air to the suction nozzle is prevented and a more efficient vacuum secured.

5. In a suction apparatus, the combination with a fitting adapted to be connected to a supply system' and havingy a suction branch, of a nozzle located within the f`1t` ting and consisting of a chambered casing having two parallel diaphragms lin immovable relation to each other and having alined inlet and discharge openings therein whose areas are equal and less than the areas in cross section of the adjacent parts of the fitting and chambered casing.

6. In a-suction apparatus, the combinationwith a fitting adapted to be connected to a supply system and having a suction branch pipe, of a spray nozzle consisting ofa chambered casing having inlet and discharge openings in itsv opposite ends whose areas are less than the areas in cross section of the adjacent parts of the fitting and the chambered casing, a water sealed trap attached to the discharge end of the aforesaid fitting and having a curved or inclined lower wall whereby the discharge of air and water will be accelerated and back flowof air rinto the suction chamber and back pressure on the suction nozzlel will be' prevented 

